StorageManager

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since December 2021.

* Some parts of this feature may have varying levels of support.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The StorageManager interface of the Storage API provides an interface for managing persistence permissions and estimating available storage. You can get a reference to this interface using either navigator.storage or WorkerNavigator.storage.

Instance methods

StorageManager.estimate()

Returns a Promise that resolves to an object containing usage and quota numbers for your origin.

StorageManager.getDirectory()

Used to obtain a reference to a FileSystemDirectoryHandle object allowing access to a directory and its contents, stored in the origin private file system. Returns a Promise that fulfills with a FileSystemDirectoryHandle object.

StorageManager.persist()

Returns a Promise that resolves to true if the user agent is able to persist your site's storage.

StorageManager.persisted()

Returns a Promise that resolves to true if persistence has already been granted for your site's storage.

Specifications

Specification
Storage
# storagemanager

Browser compatibility